Home / 13,981.79-19,294.86-7,694.16

Finding the Fourth Proportional to 13,981.79, 19,294.86 and 7,694.16

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Solution

The fourth proportional to 13,981.79, 19,294.86 and 7,694.16 is: 10,617.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.79 : 19,294.86 = 7,694.16 : x
  2. Step 2: Convert to fraction form
    13,981.79/19,294.86 = 7,694.16/x
  3. Step 3: Cross multiply
    13,981.79x = 19,294.86 × 7,694.16
  4. Step 4: Simplify right side
    13,981.79x = 148,457,740.02
  5. Step 5: Solve for x
    x = 148,457,740.02/13,981.79
  6. Step 6: Final answer
    x = 10,617.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.